<template>
  <sar-button size="mini">迷你尺寸</sar-button>
  <sar-button size="small">小尺寸</sar-button>
  <sar-button size="medium">默认尺寸</sar-button>
  <sar-button size="large">大尺寸</sar-button>
</template>
